Initial Evaluation of Computer-Assisted Radiologic Assessment for Renal Mass Edge Detection as an Indication of Tumor Roughness to Predict Renal Cancer Subtypes.
Rahul Rajendran, Kevan Iffrig, Deepak K Pruthi, Allison Wheeler, Brian Neuman, Dharam Kaushik, Ahmed M Mansour, Karen Panetta, Sos Agaian, Michael A Liss
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引用次数: 2
Abstract
Objective: To develop software to assess the potential aggressiveness of an incidentally detected renal mass using images.
Methods: Thirty randomly selected patients who underwent nephrectomy for renal cell carcinoma (RCC) had their images independently reviewed by engineers. Tumor "Roughness" was based on image algorithm of tumor topographic features visualized on computed tomography (CT) scans. Univariant and multivariant statistical analyses are utilized for analysis.
Results: We investigated 30 subjects that underwent partial or radical nephrectomy. After excluding poor image-rendered images, 27 patients remained (benign cyst = 1, oncocytoma = 2, clear cell RCC = 15, papillary RCC = 7, and chromophobe RCC = 2). The mean roughness score for each mass is 1.18, 1.16, 1.27, 1.52, and 1.56 units, respectively (p < 0.004). Renal masses were correlated with tumor roughness (Pearson's, p=0.02). However, tumor size itself was larger in benign tumors (p=0.1). Linear regression analysis noted that the roughness score is the most influential on the model with all other demographics being equal including tumor size (p=0.003).
Conclusion: Using basic CT imaging software, tumor topography ("roughness") can be quantified and correlated with histologies such as RCC subtype and could lead to determining aggressiveness of small renal masses.
期刊介绍:
Advances in Urology is a peer-reviewed, open access journal that publishes state-of-the-art reviews and original research papers of wide interest in all fields of urology. The journal strives to provide publication of important manuscripts to the widest possible audience worldwide, without the constraints of expensive, hard-to-access, traditional bound journals. Advances in Urology is designed to improve publication access of both well-established urologic scientists and less well-established writers, by allowing interested scientists worldwide to participate fully.